COMPUTER HARDWARE COMPONENTS FUNCTIONS
EXTERNAL AND INTERNAL STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Solid State Drives are more durable than Magnetic Drives since they have no moving parts
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Optical drives are faster than a magnetic hard drive
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Magnetic tape is ideal for backing up large quantities of data (such as a network)
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Cloud storage can allow many users to share and access the same data/files
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Detailed explanation-1: -The correct answer is It provides only sequential access to stored data. It provides only sequential access to stored data is not true of a magnetic disk.
Detailed explanation-2: -Optical disk generates better signal-to-noise ratio as compared to magnetic disk. The sample rate used in the magnetic disk is lower than used in the optical disk. In the optical disk, the data is sequentially accessed.
Detailed explanation-3: -The random access on optical disk is slower than that of magnetic disk, due to its spiral shape. ยป The tracks on optical disk are further divided into sectors which are of same length. Thus, the sectors near the centre of disk wrap around the disk longer than the sectors on the edges of disk.
Detailed explanation-4: -Although optical media is more durable and less vulnerable to environmental conditions than tape, HDDs and SSDs, optical discs are slower than the typical HDD and significantly slower than the SSD and offer lower storage capacities than either.